Tornadoes and Flash Flood in North Dakota, May 24, 2010

Two funnel clouds were reported along Highway 22 south of New England.

Severe thunderstorm wind gusts resulted in shingle damage to a home and three to five inch diameter trees broken.

Strong straight line winds associated with a severe thunderstorm resulted in damage to farm outbuildings.

Straight line winds associated with a severe thunderstorm destroyed two outbuildings on a farm. The wind speed was estimated based on the damaged observed during a storm survey.

No damage was reported.

A tornado touched down in western Sioux County and crossed into southwest Grant County. Damage was sustained to a roof on a farmstead in Sioux County. Based on a storm survey of the area damage was consistent with a low end EF1 tornado. From that it was determined that wind speeds were around 90 mph. The tornado crossed into Grant County. See the tornado entry for Grant County.

This tornado crossed into southwest Grant County from western Sioux County. See the tornado entry for Sioux County. The tornado hit no structures in Grant County, but did do damage in Sioux County. It was rated low end EF1 with estimated winds of 90 mph.

Extreme straight line winds associated with a severe thunderstorm caused extensive damage north of Kulm. Visual inspection of storm survey photos indicate estimated winds of 90 to 105 mph. The worst damage and highest estimated winds occurred roughly 2 miles north-northwest of Kulm where 4 large grain bins were destroyed and heavy damage was sustained to a shop on a farmstead. Also, one wall was destroyed and the roof collapsed on a large machine shed, and several pieces of farm machinery had damage from being blown over. Preliminary damage estimates indicated one million dollars to this one location. Other areas north of Kulm also sustained damage from the straight line wind gusts, but not as severe.

Extreme straight line winds associated with a severe thunderstorm caused extensive damage north of Kulm. Visual inspection of storm survey photos indicate estimated winds of 90 to 105 mph. The strong winds blew off the sheet metal on a building on this farmstead.

Extreme straight line winds associated with a severe thunderstorm caused extensive damage north of Kulm. Visual inspection of storm survey photos indicate estimated winds of 90 to 105 mph. The strong winds blew off the sheet metal on a barn, did damage to a garage wall, snapped some trees, and bent metal on a shop on this farmstead.

Extreme straight line winds associated with a severe thunderstorm caused extensive damage north of Kulm. Visual inspection of storm survey photos indicate estimated winds of 90 to 105 mph. Four farmsteads in this area had damage. Damage included farm machinery tipped over, damage to grain bins, and a few farm outbuildings destroyed.

Strong straight line winds associated with a severe thunderstorm resulted in several large evergreen and cottonwood trees to become uprooted or were blown over. The wind speed was estimated from a storm survey.

Flash flooding was reported in and around the Jamestown area due to very heavy thunderstorm rains. Several streets had several feet of water and minor damage was done to buildings by flood waters. Some county roads outside the city had water over them. Significant damage was not reported.

Strong straight line winds associated with a severe thunderstorm tore the roof off of a farm outbuilding, broke off tree branches, blew down a small wind turbine, and pushed a large old barn so that it now leans towards the north. Wind speed was estimated from the visual inspection of damage during a storm survey.

Numerous tree branches were blown down in Flasher from severe thunderstorm wind gusts.

A large fertilizer building north of New Salem sustained heavy damage from extreme straight line winds associated with a severe thunderstorm. Visual inspection of the damage conducted during a storm survey indicates estimated winds of 95 mph. Much of the damage was to the roof of the building, in which much of the metal roof was peeled back and blown off to the north. Preliminary damage was estimated at over one million dollars to the building and loss of fertilizer.

Additional damage from severe thunderstorm winds was observed north-northeast of New Salem towards the Morton County and Oliver County border. Several farms had damage to outbuildings, trees, and farm equipment. Damage here was estimated at one quarter of a million dollars.

Very heavy rain accompanied the strong thunderstorm winds.

This tornado was not reported to the National Weather Service in real time. It was determined, based on information gathered, that this tornado formed north-northwest of Fort Yates, and moved northeast. There were no injuries. Reports indicate very minor damage to fences and a trailer home. There were no injuries. From that it was determined that this was an EF0 tornado with wind speeds then estimated, based on the EF Scale, at about 70 mph.

A farmstead one mile west of Driscoll sustained damage to two outbuildings. Tree damage was evident from just north of Driscoll, northward to Arena. A farmstead five miles south of Arena had one outbuilding damaged. The damage was indicative of severe thunderstorm straight line winds up to 85 miles per hour.

Strong winds associated with a severe thunderstorm resulted in moderate damage within the city of Linton. Parts of the roof were torn off of the Linton fire hall and several trees were blown down. Reports of damage to other roofs in Linton and several power lines blown down were also received.

Damage was reported near Wing from severe thunderstorm wind gusts. Several trees and power lines were blown down, along with damage to a deck on a home.

A farmstead two miles east of Arena sustained heavy damage from severe thunderstorm straight line winds. One outbuilding was destroyed, a television antenna was blown down, roof damage was sustained to the home and another outbuilding, and several trees had damage. The severity of the damage was indicative of winds up to 90 miles per hour.

Twenty inch in diameter trees were reported blown down from severe thunderstorm wind gusts.

Peak thunderstorm wind gust reported at the Long Lake National Wildlife Refuge.

Severe thunderstorm wind gusts damaged a shed and destroyed a garage.

The public reported damage to farms in the area. Most of the damage was caused by thunderstorm winds, however, the damage in one area was descriptive of a tornado. The farmer with the worst damage described objects scattered about in east, north, northwest, and west directions. His description of the debris field indicated that this was likely a tornado. Vehicles were damaged, along with garages, stalls, and barns. Trees were uprooted. One garage was blown to the west, while animal feeders were blown to the east. Based on the description of damage it was determined that this was an EF1 tornado. From that the estimated wind speed was around 100 mph.

There was significant damage to farms from about six miles west of Napoleon to about two miles northwest of Napoleon. Damage was done to pole barns and other outbuildings. Six power poles were snapped and one cow was killed in the area west of Napoleon. There was also crop damage.

Heavy rain accompanied the strong winds.

Strong winds associated with a severe thunderstorm caused some damage to a home.

Strong winds associated with a severe thunderstorm blew over a semi trailer near Hurdsfield.

There was damage to an outbuilding on a farm and to trees. Heavy rain accompanied the strong thunderstorm winds.

Very strong winds associated with a severe thunderstorm damaged a building at the Harvey airport and also blew over numerous trees and some power lines. Other structural damage was also sustained in and around the Harvey area.

Very heavy rain accompanied the severe thunderstorm winds.